Out of 153 students appeared in an examination the ratio of the students who got the A+ A and B+ grades is 2:4:5 and if 21 students got the other grades then, how many students got the A+, A and B+ grades?​

Answers

Answer 1

Step-by-step explanation:

153 - 21 = 132

132 / 11 = 12

Hence 24 students got A+, 48 students got A, and 60 students got B+.


Related Questions

solve for x... Please i need help!

Answers

Answer:

6

Step-by-step explanation:

x=6

ax+bx=cx

10+bx=16

10+6=16

x=6

A museumcharges forgeneraladmission and exhibitions. Admission and 3 exhibitionscosts $45. Admission and 5 exhibitionscosts $65. What is the price of admission (initial value)

a. 15
b. 5
c. 8
d. 3

Answers

Answer:

a

Step-by-step explanation:

I guessed

I think it’s B because it’s the only one that goes into 45 and 65

Compute the sales commission:
Amount $4,500.00
Rate 5%

Answers

900 hope this helped

1. One factor is a two digit number between 1 and 10 2. One factor is a two digit number between 1 and 10 ( different from the first) 3. The product is greater than 8. But less than 10

Answers

Answer: 3.5 *  2.5 = 8.75

Step-by-step explanation:

The factors are to be less than 10 but are should be two digit numbers. The only way this is possible would be if they had decimals.

Which two numbers below 10 can give a product less than 10 but more than 8?

3 and 3 would give 9 which is the closest to our constraints.

Both numbers cannot be similar however and have to have a decimal but the factors should be around 3 but not up to 4 as this would pass the 10.

3.5 *  2.5 = 8.75 would work.

Toni rides the Ferris wheel shown for 15 revolutions. A photo of a Ferris wheel has the diameter labeled fifty-six feet. Question 1 Part A How far does Toni travel in one revolution? Use 227 for π

Answers

Answer:

a. 176 feet b. 2640 feet

Step-by-step explanation:

a. Since the diameter of the Ferris wheel is D = 56 feet, the distance Toni travels in one revolution is the circumference of the Ferris wheel, C = πD.

So C = 22/7 × 56 ft = 22 × 8 ft = 176 feet

b. The distance traveled in 15 revolutions is thus D' = 15 × distance of one revolution = 15 × 176 = 2640 feet

-5y + 31 = y – 11 plz give me the anser

Answers

-5y+31=y-11
-5y= -42 + y
-6y = -42
y = 7 :D

what is 8:6 simplified

Answers

Answer:

4:3

Step-by-step explanation:

8/2=4

6/2=3

Answer:

its 43, or if your talking about fractions its 4/3

-x/6 +10 = 11

I need the value for x it’s either

-6 or 6

Answers

Answer:-6

Step-by-step explanation:

use pathway with a m

In 60 seconds, a car in a parade travels 0.2 mile. The car traveled the last 0.05 mile in 12 seconds. How long did it take for the car to travel 0.1 mile?

Answers

Answer:

First 0.1 miles: 32 seconds

Last 0.1 miles: 28 seconds

Step-by-step explanation:

The car traveled 0.2 mile in 60 seconds.

The last 0.05 miles were done in 12 seconds.

Then the first 0.2 - 0.05 = 0.15 miles were done in 60 - 12 =  48 seconds. The speed of the car was: 0.15/48 = 0.003125 mi/s

At this speed it takes 0.1/0.003125 = 32 s to travel the first 0.1 mile.

In the second 0.1 mile, 0.05 miles are done at the same speed than before. It takes 0.05/0.003125 = 16 s, the next 0.05 miles were traveled in 12 seconds,  making a total of 16+12 = 28 seconds

Anybody know the answer

Answers

Answer:

8

Step-by-step explanation:

pytherogream triple or smth

17,15,8

225+64=289

which equation represents a line that is parallel to the line whose equation is 2x + 3y = 12

Answers

You first need to solve for y to get the equation in the y=Mx+b;
y=-(2/3)x+4
So the slope is -(2/3) and the y-intercept is 4. Parallel lines have the same slope but different y-intercepts. That means that a line with a slope of -(2/3) will work.

Last year the 7th grade class had 350 students. This year the number decreased 36%. How many students are in this year's 7th grade class?

Answers

Answer:

224

Step-by-step explanation:

350-36%=224. easy as that.

What are the answers here?

Answers

Answer:

x

Step-by-step explanation:

y interspect x

The family built a house that has a length and width in a ratio of 5: 4, what is the length and width of the house if the total area of ​​two identical floors is 160m2

Answers

Answer:

I hope it will help u , please Brain -list the question

Step-by-step explanation:

As given that

L:W=5:4

L/W=5/4

L=(5/4)W

hence we also know that

Area of rectangle= L*W

As given A=160m2

putt the value of A and L=(5/4)W in above equation ,

hence      160 = (5/4)W * W

W^2 = 160*4/5

W^2 = 32*4

W^2=128

taking square root  

W= +_ 11.3  

but length can't be negative so we take positive value of W  

W=11.3 m

Now for L putt in above equation,

L=5/4 * 11.3 = 14.12 m

(20p) Write the equation that represents a circle with center (−10, −6) and radius 9 units.

Answers

Answer:

The equation of a circle is:

(x−x0)2+(y−y0)2=R2  

where  x0  and  y0  are the center of the circle  (x0,y0)  and  R  is the radius of the circle.

Step-by-step explanation:

Step-by-step explanation:

The equation of the circle is (x + 10)² + (y + 6)² = 81.

Please help me out!!!!!

Answers

Answer:

Start by identifying which solutions have a degree of 2 Degree of two is the sum of all the exponential powers.You have a coefficient leading of 1 so x^2 would be the correct first term.Hope this helps.

Answer: x^2 - 14x + 53

Explanation:

Multiply out the zeros;

(x - (7 + 2i)) (x - (7 - 2i))

Mr. Harris is adding tiles to his patio area. On Monday, he tiled
of his patio, and on Tuesday, he tiled
of the patio area. How
much would he have left to tile on Wednesday?

Answers

Answer:

The Answer is D

Step-by-step explanation:

there u go

Answer:a

Step-by-step explanation:

(HELP) solve the system by substitution. check your answer.
4x+5y=7
x=5y+8​

Answers

For this equation after the substitution you will get y=-1.

i need an opinion, what do y'all think about this note I wrote. I have another one for another person.
Dear Sierra

I know I have made mistakes in the past
And the happiness inside of me will never last
I'm sorry for all the things I have done
Everything I do was so you will have fun
I'm sorry I'm not there for you
Through all the rough stuff that you been through
I'm sorry I'm not there to help you with your homework
I'm sorry I'm not there to praise your artwork
I've been trying to be there for some time now
Thinking I can be there some how
But as it turns out I'm just a failure
No one noticed my sad behavior
Not Evan you, I mean who would
No one can help, nobody ever could
I geuss I'm just stuck here on this Earth
You don't need me, I mean what am I worth
Nothing, right. It won't hurt because it's the truth
My life is like court now that everyone voted at the booth
It's time for me to go, the majority rule
I'm tierd of being here looking like a fool
Times running out, it's funny how it just flyes by
I love you Sierra and this is Goodbye

Answers

Answer:

this is really good but very sad so if thats what you're going for then you did a really good job!! :(

Step-by-step explanation:

Answer:

i love it!!! very cool

Step-by-step explanation:

A car is traveling at 45 miles per hour. Once the car starts to brake, it's speed (s) is related to the number of seconds (t) it spends braking according to the formula shown below. s=10t+45

Determine how many seconds it takes for the car to stop.

Answers

Answer: 55t

Step-by-step explanation:

The time taken by the car to stop is 1.28 seconds.

What is speed?

Speed is defined as the ratio of the time distance travelled by the body to the time taken by the body to cover the distance. Speed is the ratio of the distance travelled by time. The unit of speed in miles per hour.

Given that a car is travelling at 45 miles per hour. Once the car starts to brake, its speed (s) is related to the number of seconds (t) it spends braking according to the formula shown below. s=10t+45.

The formula to calculate the speed is written as,

V = s / t

Here s = 10t + 45 substitutes the value in the formula and calculate the time,

45 = ( 10t + 45 ) / t

45t = 10t + 45

35t = 45

t = 45 / 35

t = 1.28 seconds

To know more about Speed follow

brainly.com/question/6504879

#SPJ2

Solve for c.

2(c +1) = 10

Answers

Answer:

c = 4

Step-by-step explanation:

[tex]2(c+1) = 10[/tex]

Lets divide both the sides by 2.

[tex]=> \frac{2 (c+1)}{2} = \frac{10}{2}[/tex]

[tex]=> c + 1 = 5[/tex]

Now , lets substract 1 on both the sides.

[tex]=> c + 1 - 1 = 5 - 1[/tex]

[tex]=> c = 4[/tex]

The solution to the equation 2(c + 1) = 10 is c = 4.

We have,

To solve for c in equation 2(c + 1) = 10, we will apply the distributive property and simplify the equation step by step.

Let's solve it:

Distribute the 2 to the terms inside the parentheses:

2c + 2 = 10

Move the constant term (2) to the right side by subtracting 2 from both sides of the equation:

2c + 2 - 2 = 10 - 2

Simplifying further:

2c = 8

Divide both sides of the equation by 2 to solve for c:

(2c) / 2 = 8 / 2

Simplifying further:

c = 4

Therefore,

The solution to the equation 2(c + 1) = 10 is c = 4.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ6

Sarah reads 51 pages in 17 days.
Sarah's unit rate is _________ pages per day.
Must show work!

Answers

Answer:

sarah is a slow reader.....51/17=3

so she reads 3 pages per day

Step-by-step explanation:

Which of the following is a zero for the function f(x) = (x - 15)(x + 1)(x - 10)?
x=-15
x=-10
x=1
x= 15

Answers

The answer is x=15. Hope this helps

Answer:

x=15

Step-by-step explanation:

The percent of each number?
200% of 10

A. 20
B. 200
C. 2,000
D. 20,000

sorry if this is easy i dont listen :l

Answers

20

Step-by-step explanation:

please mark me as branliest and follow me

A car drives 195 miles in 3 hours and 15 minuits. What is the average speed of the car?

Answers

Answer: [tex]61.9miles/hr[/tex]

Step-by-step explanation:

given data:

distance travelled by the car =  195 miles

time taken = 3 hours and 15mins

solution

average speed of the car

[tex]= \frac{195miles}{3hrs15mins} \\\\= 61.9miles/hr[/tex]

Answer:

The average speed is [tex]v=60 miles/h[/tex]

Step-by-step explanation:

The equation of the average speed os given by:

[tex]v=\frac{\Delta x}{\Delta t}[/tex] (1)

here:

Δx is just 195 miles

Δt is the time traveled. 3.25 h ( 3 h + 15 min or 0.25 h)  

So we just need to put this into the equation (1)

[tex]v=\frac{195}{3.25}[/tex]

Therefore, the average speed is [tex]v=60 miles/h[/tex]

I hope it helps you!

help me pls !! i don’t understand

Answers

C divided by 9 = D!.........

Find the inverse of Y=2x-6

Answers

Answer:

Step-by-step explanation:

f^-1(x)=x/2+3


To find the inverse, interchange the variables and solve for
y
y
.
f

1
(
x
)
=
x
2
+
3

How do you know which variable goes with which axis when you graph ?

Answers

Answer:

The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).

Minnie is making tea. She knows that her tea tastes best if she lets her tea bag sit in the hot water for exactly fifteen minutes. However, depending how hot the water is, she may have to leave her tea bag in the water for 2 minutes more or less than usual. Write and solve an absolute value equation to describe this situation

Answers

Answer:

|x - 2| = 15 ; |x + 2| = 15

Step-by-step explanation:

Given that:

Wait time = 15 minutes

Variation in wait time depending on level of hotness = 2 minutes

X ± 2 = 15

x + 2 = 15 or x - 2 = 15

x = 15 - 2 = 13 or x = 15 + 2 = 17

Hence, to express the above as an absolute value equation :

|x - variation| = mean time

|x - 2| = 15 ; |x + 2| = 15

How do you do this?
Please help x

Answers

Answer:

Step-by-step explanation:

a). Given equation is y = 3x - 4

   Table for the input-output values is,

   x          -1           0          1            2          3

   y          -7          -4         -1           2          5

Now we can plot these points on the graph (graph attached).

b). Equation is y = -2x + 3

   Table for the input-output values will be,

  x       -1          0         1        2       3

  y       5          3         1        -1       -3

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